Consider a relational schema R(A, B, C) with a functional dependency B ? C. If A is a candidate key of R, could R be in BCNF and, if so, under what conditions?

What will be an ideal response?


The only way R could be in BCNF is if B is a key of R.

Computer Science & Information Technology

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Select all that apply. Which of the following is a check for data accuracy?

a. the user enters the number of hours watching movies in a given day b. the user enters a number in an allowable range c. the user selects a username of any length, using any keyboard characters d. the user enters a phone number to be formatted as (555)555-5555

Computer Science & Information Technology

Describe the role of a default gateway in a routing table.

What will be an ideal response?

Computer Science & Information Technology

The three available Markup views are No Markup, All Markup, and ________

Fill in the blank(s) with correct word

Computer Science & Information Technology

Word is able to convert PDF documents to Word documents flawlessly, including conversion of text and graphics

Indicate whether the statement is true or false

Computer Science & Information Technology